The URS N4 Series EQ is available for Windows and Mac (VST/AU/RTAS/TDM). The TDM license is available for an introductory price of $199.99 USD until 15th July, 2009 (regular price $399.99 USD). The native license is $99.99 USD until 15th July, 2009 (regular price $199.99 USD).